staging: ks7010: remove not used function signature ks_wlan_read_config_file

This commit removes definition of function ks_wlan_read_config_file
which is not being used at all.
Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/ks7010/ks_wlan_ioctl.h

@@ -58,7 +58,6 @@
 #include "ks_wlan.h"
 #include <linux/netdevice.h>
 
-int ks_wlan_read_config_file(struct ks_wlan_private *priv);
 int ks_wlan_setup_parameter(struct ks_wlan_private *priv,
 			    unsigned int commit_flag);